Improvement in heating-stoves



`P. D. BECKWITH.

Heating Stove. y No. 123,142. jzyj Patmedlamsonvz.

UNITED STATES PATENT OFFICE.

IMPROVEMENT IN HEATING-STOVES.

Speciication forming part of Letters Patent No. 123,142, dated January 30, 1872.

To all whom tt may concern:

Be it known that I, PIIILo D. BEcKwITH, of Dowagiac, in the county of Cass and State of Michigan, have invented an Improvement in Stoves and I do hereby declare that thcfollowing is a full, clear, and exact description thereof, reference being had to the accompanying drawing making part of this specitication, in which- Figure l is a diametrical section through the stove from front to rear. Fig. 2 is a top view of the fire-pot.

Similar letters of reference indica-te corresponding parts in the several figures.

This invention relates to an improvement on stoves of a particular kind, hereinafter eX- plained, wherein an exposed lire-pot section is fitted into the upper end of a hollow ash-pit section, and wherein it is important to prevent undue expansion of these two sections at the point of junction.

The following description of my invention will enable others skilled in the art to understand it.

In the accolnpanying drawing, A, B, and C represent the three principal sections of the stove. The section A is cylindrical and forms the body of the stove, the section B is downwardly tapering and forms the irechainber, and the section C forms the base or ash-pit and receives into it at b the lower end of the cast-iron section B. The section B has formed on the inner side of its lower end an annular flange, c, on which the grate a rests. This iiange is made of such width that it will collect upon it a bank of ashes which will have the effect of preventing that part of section B which is received into the upper part of the base section from becoming unduly heated; or, in other words, the collection of ashes on the flange c will prevent such an expansion ofthe lower end of' section B as would cause it to leave its seat b and expose an open joint at this point. In the kind of stove represented in the drawing' it is important that there should be but one opening, g, for the admission of air beneath the grate, which opening is provided with a movable register piece, by adjusting which the amount of air admitted beneath the grate is regulated. If the lower end of the cast-iron section B is not protected from expandin g unduly by the accumulation of ashes on the flange or shelf c, not onljv will there be an air-inlet space formed around the base of said section, but the register-plate will belifted from its place and will not form a close joint.

I have found that the expansion of the section B is so great without the ilange c that the stove is a failure; but with the iiange cast on as above shown the joint b will remain tight during the lifetime of the stove. This iiange may be cast or made separate from the section B and riveted or otherwise fastened-to the section.

Having described my invention, what I claim as a new article of manufacture, is-

The tapering cast-iron section B, with the flange or shelf c formed on it, as described and shown.

PHILO D. BEGKVVITH.

Witnesses:

E. 0. ADAMS, W. H. TICE. 

